Mplus Co., Ltd.

Visualnet Inc.

Jong Hyuck Hong

Jung Hyun Park

Dong Sun Park

Dong Woohn Kim

The inventive concept relates to a radio frequency identification (RFID)-based genuine product certification service system and method employing a code update algorithm for forgery prevention in which a genuine product certification processing server stores an RFID tag access code and a variable genuine product certification code in an RFID tag through a wired or wireless terminal including an RFID writer and reader and a database thereof for genuine product certification to determine whether a product or document is genuine using the tag information stored in the RFID tag and the genuine product certification code when RFID tags are used to prevent imitations (fakes) of medicine, food and beverages, luxury goods, alcohol, products, etc. and forgery of important documents, such as an ID card, a contract, and a notarized document, and changes the genuine product certification code in the RFID tag through the wired or wireless terminal including an RFID writer and reader at a genuine product certification attempt or at regular intervals to prevent a genuine product certification attempt with a duplicate using the periodically updated variable genuine product certification code even when a person copies the RFID tag for the purpose of forgery.

RFID-based genuine product certification service system and method employing code update algorithm for forgery prevention

Embodiments of the invention provide a piezoelectric vibration module, including a vibration plate mounted with a piezoelectric element, which generates a vibration force in a vertical direction by being repeatedly expanded and contracted depending on external power applied thereto, and a lower case coupled with both ends of the vibration plate so as to be spaced apart from the vibration plate. The piezoelectric vibration module further includes a bar-shaped weight body increasing the vibration force of the piezoelectric element, and an elastic member interposed between the vibration plate and the weight body.

Growing community of inventors

Gyeonggi-do, South Korea

Jong Hyuck Hong